Noise and decoherence induced by gravitons

Sugumi Kanno, Jiro Soda, Junsei Tokuda

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


We study quantum noise and decoherence induced by gravitons. We derive a Langevin equation of geodesic deviation in the presence of gravitons. The amplitude of noise correlations tells us that large squeezing is necessary to detect the noise. We also consider the decoherence of spatial superpositions of two massive particles caused by gravitons in the vacuum state and find that gravitons could give a relevant contribution to the decoherence. The decoherence induced by gravitons would offer new vistas to test quantum gravity in tabletop experiments.

Original languageEnglish
Article number044017
JournalPhysical Review D
Issue number4
Publication statusPublished - Feb 9 2021

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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